(PECL mongo >=1.3.0)
Lists all of the databases available.
public array MongoClient::listDBs ( void )
Returns:
Returns an associative array containing three fields. The first field is databases, which in turn contains an array. Each element of the array is an associative array corresponding to a database, giving th database's name, size, and if it's empty. The other two fields are totalSize (in b